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Reducing Tee 25x20mm RAKtherm PPRc

RAKtherm UAE imported food grade PPRc pipes and fittings importer, distributors, dealers in karachi Pakistan.

SKU: Reducing Tee 25x20mm Category: Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Description

Reducing Tee 25x20mm

 

PPRC Tee Reducing  RAKtherm Food graded third generation . Sizes ranging from 25mm to 110mm diameter. Distributor contact 0322-3540656

 

 

What is Reducing Tee 25x20mm RAKtherm PPRc ?

 

The RAKtherm Reducing Tee (25x20mm) is a high-performance piping component engineered for complex HVAC and potable water systems. Engineers manufactured it in the UAE to meet German technological standards, specifically designing it to manage the rigorous pressure and temperature fluctuations in modern multi-story building solutions.

Description & Material Science

The fitting is made from Polypropylene Random Copolymer (PPRc) Type 3. Unlike standard plastic fittings, RAKtherm utilizes a high molecular weight structure that provides superior resistance to “creep” (deformation under long-term stress).

  • The reducing function allows a branch line of 20mm to branch off from a main 25mm run, maintaining hydraulic balance and eliminating the need for separate bush reducers.

  • PN 25 Rating: This indicates a nominal pressure of 25 bar (at 20°C). This is the highest standard rating for PPRc, making it significantly more robust than PN 16 or PN 20 alternatives often found in residential-only retail.

Technical Specifications Reducing Tee 25x20mm RAKtherm PPRc

Feature Specification
Material PPRc Type 3 (Random Copolymer)
Pressure Rating PN 25 (2.5 MPa)
Dimensions Main: 25mm
Temperature Range -20°C to +95°C
Standard Compliance DIN 8077/8078, EN ISO 15874
Service Life 50+ years (under rated conditions)

Installation Protocol

Proper installation requires Socket Fusion Welding. For a PN 25 fitting, precision in heating timing is critical to ensure the chemical bond is as strong as the pipe itself.

1.Preparation:Tools: Pipe cutter, chamfer tool.

Cut the 25mm and 20mm pipes square. Clean the pipe ends and the internal socket of the tee with alcohol to remove dust or grease.

2.Heating:Temperature: 260°C (±10°C).

Push the pipe and the tee onto the welding machine mandrels simultaneously.

  • 25mm side: Heat for 7 seconds.

  • 20mm side: Heat for 5 seconds.

3.Joining:Zero Rotation.

Remove from the mandrels and immediately push the pipe into the tee until the depth mark is reached. Do not rotate the pipe during insertion as this disrupts the fusion weld.

4.Cooling:2-4 minutes.

Hold the joint steady for 30 seconds. Allow it to cool naturally for at least 2 minutes before applying any mechanical stress.

 

Usage in HVAC & Water Supply

In the context of the Islamabad/Rawalpindi climate and construction standards, this PN 25 fitting is primarily used in:

  1. HVAC Chilled Water Loops: The high pressure rating handles the surge pressures of circulating pumps in centralized cooling systems.

  2. Hot Water Risers: Ideal for boiler-fed hot water lines where temperatures reach 70-80°C. The PPRc material acts as a natural insulator, reducing thermal loss compared to copper or galvanized iron.

  3. High-Rise Domestic Water: Used in the lower floors of tall buildings where static pressure is highest.

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